Trolley-wheel.



A. PERRY.

TROLLEY WHEEL.

APPLICATION FILED JULYB,1909.

Patented Feb. 17, 1914.

S V E S 5 E N T l w INVENTOR I ATTORNEY AMOS PERRY, OF SAN FRANCISCO,CALIFORNIA.

TROLLEY-WHEEL.

Specification of Letters Patent.

Patented Feb. 17, 1914.

Application filed July 8, 1909. Serial No. 506,528.

To all whom it may concern:

Be it known that I, AMos PERRY, a citizen of the United States, residingat San Francisco, in the county of San Francisco and State ofCalifornia, have invented certain new and, useful Improvements inTrolley-lVheels, of which the following is a specification.

My invention relates to improvements in trolley-wheels.

The object of my invention is to provide a trolley-wheel having certainfeatures whereby a steady, uniform and prolonged lubrication of the samein the running thereof will be obtained thereby prolonging the lifethereof, as well as obviating the necessity of frequent attention to thesame.

My invention consists in the novel construction and combination of partsshown in the accompanying drawing, described in the followingspecification and claimed in the appended claim.

In the drawing Figure 1 is a side view of my trolley wheel attached tothe trolleyharp, the same being partly shown in dotted lines. Fig. 2 isan edge view of the said wheel showing the movable grooved rimhereinafter mentioned in section. Fig. 3 is also an edge view of saidwheel showing said rim and the axle in section. Fig. 4 is a section ofsaid trolley-wheel on line AA of Fig. 3.

In the figures 1 is the annularly grooved rim of the trolley wheelturnably mounted on a hub composed of two parts 3 and 4. The said hub issecured to a trolley-harp 2, and said parts of the axle have flanges 5and 6 which fit into the recesses 7 and 8 in said rim 1. 9 indicates thebearing surface of the part 3 of said-axle and has an annular groove 10for each of the wicks or absorbent material 13 to rest in, the saidwicks passing through the holes 12 and feeding oil from the oil chamber14 to the bearing surface 9 for said grooved rim. The two parts of theaxle are secured together by screws 11. The parts marked 15 indicatethreaded lugs for nuts 16 for securing the trolley wheel to the trolleyharp, 2. p

17 represents an oil cup or valve to supply oil to the oil chamber 14.

The groove in the rim 1 as shown in Fig. 2 and Fig. 3 is the preferredform thereof for contact with the trolley-wire in all conditions of itsuse. The flanges or bearings 5 and 6 are substantially identical in sizeand construction, except that the flange integral with part 4 containsapertures for screws to secure said flange to part 3. In practice theoil chamber should be filled with oil, whereby through the wicks asteady feeding of oil for the purpose of lubrication is accomplished.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent, is

In combination with a trolley harp, a trolley wheel having an axle andhaving a central oil chamber, the wall of said chamber having inwardlyextending projections and consisting of two parts, one of said partshaving an inwardly projecting tubular portion depressed below saidflange, and provided with a central annular groove having a plurality ofequidistant holes extending through the wall of said projecting portionto said groove, and the other of said parts having also an annularflange in engagement with and removably secured to said projectingtubular portion, a rim for said wheel having inner side recesses movablyengaging said flanges and said tubular portion so depressed, hubs forsaid wheel extending outwardly from said flanges, lugs projecting fromsaid hubs seated in said trolley harp, and an oil cup extendingangularly through one of said hubs to said oil chamber.

In testimony whereof I afiix my signature, in presence of two witnesses.

AMOS PERRY.

WVitnesses:

L. So-NNTAG, A. K. DAGGETT,

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

